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W A Mueller Foundation

  • San Clemente, CA
  • Tax-exempt since May 2009
  • EIN: 26-2548148

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Philanthropy, Voluntarism and Grantmaking Foundations / Private Independent Foundations (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$15.1k (2024)

Expenses
$39.4k (2024)

Total Assets
$352k (2024)

Total Liabilities
$0 (2024)

Source: Form 990 tax filings from 2011 to 2024

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$15,122
Expenses
$39,434
Net Income
-$24,312
Net Assets
$352,317
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $608
4.0%
Dividends $15,170
> 100%
Sales of Assets -$728
Other Income $72
0.5%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $30,005
76.1%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $352,317
Total Liabilities $0
Net Assets $352,317
Compensation
Key Employees and Officers Compensation Other
Margarete M Mueller (Ceo) $0 $0
Suzanne C Moussavi (Secretary) $0 $0
Richard A Mueller (Cfo) $0 $0

Document Links

990-PF
Filed on June 14, 2025

Primary tax return for a private foundation's activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$7,127
Expenses
$31,284
Net Income
-$24,157
Net Assets
$376,629
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $675
9.5%
Dividends $15,862
> 100%
Sales of Assets -$9,410
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $26,500
84.7%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $376,629
Total Liabilities $0
Net Assets $376,629
Compensation
Key Employees and Officers Compensation Other
Margarete M Mueller (Ceo) $0 $0
Suzanne C Moussavi (Secretary) $0 $0
Richard A Mueller (Cfo) $0 $0

Document Links

990-PF
Filed on May 13, 2024

Primary tax return for a private foundation's activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$14,446
Expenses
$42,951
Net Income
-$28,505
Net Assets
$400,786
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $191
1.3%
Dividends $14,125
97.8%
Sales of Assets $130
0.9%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $26,905
62.6%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $400,786
Total Liabilities $0
Net Assets $400,786
Compensation
Key Employees and Officers Compensation Other
Margarete M Mueller (Ceo) $0 $0
Suzanne C Moussavi (Secretary) $0 $0
Richard A Mueller (Cfo) $0 $0

Document Links

990-PF
Filed on June 26, 2023

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$136,464
Expenses
$32,273
Net Income
$104,191
Net Assets
$429,291
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $35,941
26.3%
Interest Revenue $8
0.0%
Dividends $12,118
8.9%
Sales of Assets $88,397
64.8%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $27,020
83.7%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $429,291
Total Liabilities $0
Net Assets $429,291
Compensation
Key Employees and Officers Compensation Other
Margarete M Mueller (Ceo) $0 $0
Suzanne C Moussavi (Secretary) $0 $0
Richard A Mueller (Cfo) $0 $0

Document Links

990-PF
Filed on Oct. 16, 2022

Primary tax return for a private foundation's activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$13,382
Expenses
$27,127
Net Income
-$13,745
Net Assets
$325,099
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $5
0.0%
Dividends $12,245
91.5%
Sales of Assets $1,132
8.5%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $22,525
83.0%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $325,100
Total Liabilities $1
Net Assets $325,099
Compensation
Key Employees and Officers Compensation Other
Margarete M Mueller (Ceo) $0 $0
Suzanne C Moussavi (Secretary) $0 $0
Richard A Mueller (Cfo) $0 $0

Document Links

990-PF
Filed on May 14, 2021

Primary tax return for a private foundation's activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$14,972
Expenses
$22,831
Net Income
-$7,859
Net Assets
$338,844
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $38
0.3%
Dividends $14,542
97.1%
Sales of Assets $392
2.6%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $18,739
82.1%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $338,845
Total Liabilities $1
Net Assets $338,844
Compensation
Key Employees and Officers Compensation Other
Margarete M Mueller (Ceo) $0 $0
Suzanne C Moussavi (Secretary) $0 $0
Richard A Mueller (Cfo) $0 $0

Document Links

990-PF
Filed on May 4, 2020

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$13,346
Expenses
$20,660
Net Income
-$7,314
Net Assets
$346,704
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $27
0.2%
Dividends $13,395
> 100%
Sales of Assets -$76
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $14,350
69.5%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $346,704
Total Liabilities $0
Net Assets $346,704
Compensation
Key Employees and Officers Compensation Other
Margarete M Mueller (Ceo) $0 $0
Suzanne C Moussavi (Secretary) $0 $0
Richard A Mueller (Cfo) $0 $0

Document Links

990-PF
Filed on May 17, 2019

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$14,230
Expenses
$23,300
Net Income
-$9,070
Net Assets
$354,018
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $5,167
36.3%
Sales of Assets $9,063
63.7%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $19,242
82.6%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $354,018
Total Liabilities $0
Net Assets $354,018
Compensation
Key Employees and Officers Compensation Other
Margarete M Mueller (Ceo) $0 $0
Suzanne C Moussavi (Secretary) $0 $0
Richard A Mueller (Cfo) $0 $0

Document Links

990-PF
Filed on May 12, 2018

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$2,777
Expenses
$24,966
Net Income
-$22,189
Net Assets
$363,088
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $1
0.0%
Dividends $12,997
> 100%
Sales of Assets -$10,221
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $19,265
77.2%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $363,088
Total Liabilities $0
Net Assets $363,088
Compensation
Key Employees and Officers Compensation Other
Margarete M Mueller (Ceo) $0 $0
Suzanne C Moussavi (Secretary) $0 $0
Richard A Mueller (Cfo) $0 $0

Document Links

990-PF
Filed on April 14, 2017

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$9,734
Expenses
$31,056
Net Income
-$21,322
Net Assets
$385,277
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $10
0.1%
Dividends $14,698
> 100%
Sales of Assets -$4,974
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $22,510
72.5%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $385,277
Total Liabilities $0
Net Assets $385,277
Compensation
Key Employees and Officers Compensation Other
Margarete M Mueller (Ceo) $0 $0
Suzanne C Moussavi (Secretary) $0 $0
Richard A Mueller (Cfo) $0 $0

Document Links

990-PF
Filed on March 26, 2016

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$14,202
Expenses
$38,911
Net Income
-$24,709
Net Assets
$406,599
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $4
0.0%
Dividends $19,933
> 100%
Sales of Assets -$5,735
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $25,805
66.3%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $406,599
Total Liabilities $0
Net Assets $406,599
Compensation
Key Employees and Officers Compensation Other
Margarete M Mueller (Ceo) $0 $0
Suzanne C Moussavi (Secretary) $0 $0
Richard A Mueller (Cfo) $0 $0

Document Links

990-PF
Filed on Aug. 14, 2015

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$16,771
Expenses
$30,228
Net Income
-$13,457
Net Assets
$431,308
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $2
0.0%
Dividends $16,769
100.0%
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $25,805
85.4%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $431,308
Total Liabilities $0
Net Assets $431,308
Compensation
Key Employees and Officers Compensation Other
Margarete M Mueller (Ceo) $0 $0
Suzanne C Moussavi (Secretary) $0 $0
Richard A Mueller (Cfo) $0 $0

Document Links

990-PF
Filed on Aug. 14, 2014

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$21,450
Expenses
$40,748
Net Income
-$19,298
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $6
0.0%
Dividends $22,235
> 100%
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $36,200
88.8%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $1
Total Liabilities $1
Net Assets $0

Document Links

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$16,796
Expenses
$34,332
Net Income
-$17,536
Net Assets
$448,387
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $11
0.1%
Dividends $15,439
91.9%
Sales of Assets $1,346
8.0%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $24,589
71.6%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $448,388
Total Liabilities $1
Net Assets $448,387

Document Links

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2010

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

About This Data

What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

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Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

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